1. Shares were sold pursuant to a 10b5-1 Trading Plan in order to raise funds to pay the required withholding tax pursuant to the vesting of RSUs.

2. 1,305 shares were sold at an average price of 218.0038.

3. Subject to continuous Service throughout the vesting period, the first 25% of the restricted stock units shall vest on March 1, 2013, and an additional 25% shall vest on each September 1st thereafter until fully vested.